Daylab 35+ Viewer Fault

When I try to view a slide, the bulb starts to flash in a strobe type manner. The bulb does not achieve full brightness - I'm assuming the voltage is being turned on and off and as such, the full voltage is never applied directly to the bulb.

Has anyone else experienced this problem?

If so, how difficult is the repair?

It looks like the circuit board is a throw away item - anyone had any luck replacing any compents on the control board?